Atlantic Moonfish and Similar Species
Selene setapinnis
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Open the appSeveral fish can be confused with Atlantic Moonfish. Here are the key differences.
Species often confused with {name}
Lookdown
Selene vomer
Key differences: The Lookdown (Selene vomer) has an even more exaggerated, concave head profile and much longer, more prominent filamentous dorsal and anal fin rays, even in adults. Its body is typically deeper relative to its length than S. setapinnis. The Atlantic Moonfish has a less concave head profile and shorter fin filaments in adults.
Atlantic Bumper
Chloroscombrus chrysurus
Key differences: The Atlantic Bumper has a less deep and less compressed body than the Atlantic Moonfish. It also possesses a distinct black spot on the upper operculum and a yellowish caudal fin, which are absent in S. setapinnis. The Bumper's lateral line has a series of scutes posteriorly, which the Moonfish lacks.
Permit
Trachinotus falcatus
Key differences: Permit are generally larger, have a more oval (less disc-like) body shape, and typically exhibit a more yellowish or golden coloration, especially on the fins. They also have a more pointed snout and a different fin ray count. The Permit's dorsal and anal fins are more uniformly tall, lacking the extreme elongation of anterior rays seen in juvenile Selene species.
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